For air drieds it's always best to use a commercial agent. I prefer our Rittels Ultra-Soft Relaxer - 1 fl. oz. to each 1 gallon of water used. You can purchase it from TASCO. Their toll free number is (866) 296-2782. Most air drieds will relax fully within 8-10 hours. I recommend adding nothing else to the soak - it will only slow down the relaxing process. This is not a soap product - it's a surfactant - it makes water "wetter"!
I'm with what he said....lol... I love that saying Bruce(It makes Water wetter)....lol